The Harry
Potter Lexicon presents...Atlas of HogwartsHogwarts and environs

This map shows
one possible arrangement for Hogwarts Castle and Hogsmeade. The general
relationships are most likely correct--for example, we know that the Lake
is located to the south of the castle and that the Hogwarts front doors
face more or less to the west. We are also told that the Quidditch Pitch
and the Forbidden Forest are on opposite sides of the castle from each
other, and since Harry sees the setting sun shining on the windows of Hogwarts
as he leaves the stadium in SS, I put the stadium to the west. The location
of various shops in Hogsmeade is based simply on which order Harry, Ron,
and Hermione visited them, which admitedly isn't all the much to go on.
The exception to this is Dervish and Banges, which we know is pretty much
the last one down the High Street before it runs out into the country.